diff --git a/src/java/com/samskivert/util/CalendarUtil.java b/src/java/com/samskivert/util/CalendarUtil.java
index 1f2b9d5d..7c9f4bfa 100644
--- a/src/java/com/samskivert/util/CalendarUtil.java
+++ b/src/java/com/samskivert/util/CalendarUtil.java
@@ -79,7 +79,7 @@ public class CalendarUtil
         // we're going to manipulate end, so let's clone it
         end = (Calendar)end.clone();
 
-        int months = 0;
+        int months = -1;
         do {
             end.add(Calendar.MONTH, -1);
             months++;